diff options
| author | Henning Baldersheim <balder@yahoo-inc.com> | 2023-09-04 15:23:37 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-09-04 15:23:37 +0200 |
| commit | 0c7951d53ae1a2724f6740431708c302bbdd876f (patch) | |
| tree | ecd05c9d48770c5055587a7c98a70d636dcc817f | |
| parent | fbc4579c70e596007b75363496f5eb33720d6574 (diff) | |
| parent | a5654fb3769135ced0daabc7aa50138cc02523b1 (diff) | |
Merge pull request #28381 from vespa-engine/toregge/limit-madv-dontdump-to-linux
MADV_DONTDUMP is specific for linux.
| -rw-r--r-- | searchlib/src/vespa/searchlib/util/fileutil.cpp | 2 | ||||
| -rw-r--r-- | vespalib/src/vespa/vespalib/io/mapped_file_input.cpp | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/searchlib/src/vespa/searchlib/util/fileutil.cpp b/searchlib/src/vespa/searchlib/util/fileutil.cpp index c2f86224312..f602c66b544 100644 --- a/searchlib/src/vespa/searchlib/util/fileutil.cpp +++ b/searchlib/src/vespa/searchlib/util/fileutil.cpp @@ -36,7 +36,9 @@ LoadedMmap::LoadedMmap(const vespalib::string &fileName) if (sz) { void *tmpBuffer = mmap(nullptr, sz, PROT_READ, MAP_PRIVATE, fd.fd(), 0); if (tmpBuffer != MAP_FAILED) { +#ifdef __linux__ madvise(tmpBuffer, sz, MADV_DONTDUMP); +#endif _mapSize = sz; _mapBuffer = tmpBuffer; uint32_t hl = GenericHeader::getMinSize(); diff --git a/vespalib/src/vespa/vespalib/io/mapped_file_input.cpp b/vespalib/src/vespa/vespalib/io/mapped_file_input.cpp index 7f1f0d003b7..95e4a1b496f 100644 --- a/vespalib/src/vespa/vespalib/io/mapped_file_input.cpp +++ b/vespalib/src/vespa/vespalib/io/mapped_file_input.cpp @@ -20,7 +20,9 @@ MappedFileInput::MappedFileInput(const vespalib::string &file_name) if (_data != MAP_FAILED) { _size = info.st_size; madvise(_data, _size, MADV_SEQUENTIAL); +#ifdef __linux__ madvise(_data, _size, MADV_DONTDUMP); +#endif } } } |